/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com)

This file is part of XreaL source code.

XreaL source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.

XreaL source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with XreaL source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

#ifndef _SND_CODEC_H_
#define _SND_CODEC_H_

#include "../qcommon/q_shared.h"
#include "../qcommon/qcommon.h"

typedef struct snd_info_s
{
	int             rate;
	int             width;
	int             channels;
	int             samples;
	int             size;
	int             dataofs;
} snd_info_t;

typedef struct snd_codec_s snd_codec_t;

typedef struct snd_stream_s
{
	snd_codec_t    *codec;
	fileHandle_t    file;
	snd_info_t      info;
	int             length;
	int             pos;
	void           *ptr;
} snd_stream_t;

// Codec functions
typedef void   *(*CODEC_LOAD) (const char *filename, snd_info_t * info);
typedef snd_stream_t *(*CODEC_OPEN) (const char *filename);
typedef int     (*CODEC_READ) (snd_stream_t * stream, int bytes, void *buffer);
typedef void    (*CODEC_CLOSE) (snd_stream_t * stream);

// Codec data structure
struct snd_codec_s
{
	char           *ext;
	CODEC_LOAD      load;
	CODEC_OPEN      open;
	CODEC_READ      read;
	CODEC_CLOSE     close;
	snd_codec_t    *next;
};

// Codec management
void            S_CodecInit(void);
void            S_CodecShutdown(void);
void            S_CodecRegister(snd_codec_t * codec);
void           *S_CodecLoad(const char *filename, snd_info_t * info);
snd_stream_t   *S_CodecOpenStream(const char *filename);
void            S_CodecCloseStream(snd_stream_t * stream);
int             S_CodecReadStream(snd_stream_t * stream, int bytes, void *buffer);

// Util functions (used by codecs)
snd_stream_t   *S_CodecUtilOpen(const char *filename, snd_codec_t * codec);
void            S_CodecUtilClose(snd_stream_t ** stream);

// WAV Codec
extern snd_codec_t wav_codec;
void           *S_WAV_CodecLoad(const char *filename, snd_info_t * info);
snd_stream_t   *S_WAV_CodecOpenStream(const char *filename);
void            S_WAV_CodecCloseStream(snd_stream_t * stream);
int             S_WAV_CodecReadStream(snd_stream_t * stream, int bytes, void *buffer);

// Ogg Vorbis codec
#ifdef USE_CODEC_VORBIS
extern snd_codec_t ogg_codec;
void           *S_OGG_CodecLoad(const char *filename, snd_info_t * info);
snd_stream_t   *S_OGG_CodecOpenStream(const char *filename);
void            S_OGG_CodecCloseStream(snd_stream_t * stream);
int             S_OGG_CodecReadStream(snd_stream_t * stream, int bytes, void *buffer);
#endif							// USE_CODEC_VORBIS

#endif							// !_SND_CODEC_H_
